
White Horehound (Marrubium vulgare)
Photo: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen · Public domain
- Digestive
- 2 conditions
- Licensed photo
Overview
Horehound (Marrubium vulgare) is a square-stemmed perennial of about 20 in (50 cm) height, featuring fuzzy, downy greenish-gray leaves and small, white, double-lipped flowers. Known for its aromatic bitterness, horehound has a longstanding history in cough syrups and lozenges.
Traditional uses & properties
Expectorant & Decongestant: Increases thin mucus secretion, aiding cough relief, wheezing, bronchitis, and mild breathing difficulties. Digestive Stimulant: The bitter taste supports appetite and bile flow; mildly helps with indigestion. Cardiac Effect: Exerts a mild influence on heart rhythm, correcting minor irregularities. Traditional Cough Remedy: Classic ingredient in old-fashioned “horehound drops” for respiratory complaints.
Safety & precautions
Pregnancy: Generally best avoided; consult a practitioner if needed. Large Doses: The strong bitterness might irritate delicate digestion.
Drug & food interactions
Interaction data is not available for this herb - talk to a pharmacist before combining it with any medication. A blank entry here means we have not documented interactions, not that none exist.
Habitat
Originally from Europe, horehound now thrives in the Americas on dry, uncultivated land. Gathered in spring, the aerial parts (leaves and flowers) are typically dried for infusions or candies.
Traditionally used for
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Frequently asked questions
What is White Horehound (Marrubium vulgare) traditionally used for?
Traditional sources describe White Horehound (Marrubium vulgare) as follows: Expectorant & Decongestant: Increases thin mucus secretion, aiding cough relief, wheezing, bronchitis, and mild breathing difficulties. Digestive Stimulant: The bitter taste supports appetite and bile flow; mildly helps with indigestion. Cardiac Effect: Exerts a mild influence on heart rhythm, correcting minor irregularities. Traditional Cough Remedy: Classic ingredient in old-fashioned “horehound drops” for respiratory complaints.
What safety cautions apply to White Horehound (Marrubium vulgare)?
Pregnancy: Generally best avoided; consult a practitioner if needed. Large Doses: The strong bitterness might irritate delicate digestion.






